ATE144930T1 - METHOD FOR PRODUCING SINTER IRON MOLDED PARTS WITH A PORE-FREE ZONE - Google Patents
METHOD FOR PRODUCING SINTER IRON MOLDED PARTS WITH A PORE-FREE ZONEInfo
- Publication number
- ATE144930T1 ATE144930T1 AT93200835T AT93200835T ATE144930T1 AT E144930 T1 ATE144930 T1 AT E144930T1 AT 93200835 T AT93200835 T AT 93200835T AT 93200835 T AT93200835 T AT 93200835T AT E144930 T1 ATE144930 T1 AT E144930T1
- Authority
- AT
- Austria
- Prior art keywords
- zones
- brought
- pore
- sintering
- component
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/11—Making porous workpieces or articles
- B22F3/1103—Making porous workpieces or articles with particular physical characteristics
- B22F3/1109—Inhomogenous pore distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/1208—Containers or coating used therefor
- B22F3/1258—Container manufacturing
- B22F3/1266—Container manufacturing by coating or sealing the surface of the preformed article, e.g. by melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F3/26—Impregnating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Magnetic Ceramics (AREA)
Abstract
The process for making a sintered component, which is pore-free in some zones or edge zones but porous in the remaining zones, from iron materials starts from a component brought by conventional powder-pressing and sintering processes to a residual porosity of about 10% by volume. By means of additional process steps, which essentially are the zonal introduction of additional materials or local mechanical recompaction, these zones are brought to a residual porosity of 5% by volume and less; this produces a closed pore structure. Under these set conditions, the sintering component can be brought in a final HIP process step or sintering-HIP process step in the pretreated zones to a material density of 100% or to complete freedom from pores. Essential advantages: local improvement of the material properties, ability of the finished sintered components to be calibrated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4211319A DE4211319C2 (en) | 1992-04-04 | 1992-04-04 | Process for the production of sintered iron molded parts with a non-porous zone |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE144930T1 true ATE144930T1 (en) | 1996-11-15 |
Family
ID=6456061
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT93200835T ATE144930T1 (en) | 1992-04-04 | 1993-03-23 | METHOD FOR PRODUCING SINTER IRON MOLDED PARTS WITH A PORE-FREE ZONE |
Country Status (6)
Country | Link |
---|---|
US (1) | US5453242A (en) |
EP (1) | EP0565160B1 (en) |
JP (1) | JPH0610009A (en) |
AT (1) | ATE144930T1 (en) |
DE (2) | DE4211319C2 (en) |
ES (1) | ES2094458T3 (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338457C2 (en) * | 1993-11-11 | 1998-09-03 | Mtu Muenchen Gmbh | Component made of metal or ceramic with a dense outer shell and porous core and manufacturing process |
US6110419A (en) * | 1997-12-02 | 2000-08-29 | Stackpole Limited | Point contact densification |
US5976459A (en) * | 1998-01-06 | 1999-11-02 | Crucible Materials Corporation | Method for compacting high alloy tool steel particles |
US6099796A (en) * | 1998-01-06 | 2000-08-08 | Crucible Materials Corp. | Method for compacting high alloy steel particles |
US5972132A (en) * | 1998-02-11 | 1999-10-26 | Zenith Sintered Products, Inc. | Progressive densification of powder metallurgy circular surfaces |
DE19850326A1 (en) * | 1998-11-02 | 2000-05-04 | Gkn Sinter Metals Holding Gmbh | Process for producing a sintered component with reshaping of the green body |
US6168754B1 (en) | 1999-02-17 | 2001-01-02 | Federal-Mogul World Wide, Inc. | Method and apparatus for densifying powder metal preforms |
DE19921934B4 (en) * | 1999-05-12 | 2008-12-18 | Daimler Ag | Process for producing a high density and high surface density powder metallurgy sintered compact |
US6338747B1 (en) | 2000-08-09 | 2002-01-15 | Keystone Investment Corporation | Method for producing powder metal materials |
US6485540B1 (en) | 2000-08-09 | 2002-11-26 | Keystone Investment Corporation | Method for producing powder metal materials |
WO2002075171A1 (en) * | 2001-03-16 | 2002-09-26 | Sundram Fasteners Limited | Conrod and a method of producing the same |
US7160351B2 (en) * | 2002-10-01 | 2007-01-09 | Pmg Ohio Corp. | Powder metal clutch races for one-way clutches and method of manufacture |
JP2005344126A (en) * | 2002-10-04 | 2005-12-15 | Hitachi Powdered Metals Co Ltd | Sintered gear |
DE10250432B4 (en) | 2002-10-30 | 2015-01-22 | PMG Füssen GmbH | Method for the mechanical shaping of deposits on iron-based sintered components |
US20040115084A1 (en) * | 2002-12-12 | 2004-06-17 | Borgwarner Inc. | Method of producing powder metal parts |
US6899846B2 (en) * | 2003-01-14 | 2005-05-31 | Sinterstahl Corp.-Powertrain | Method of producing surface densified metal articles |
US7145217B2 (en) * | 2005-01-25 | 2006-12-05 | Kyocera Corporation | Chip-type noise filter, manufacturing method thereof, and semiconductor package |
DE102005027049A1 (en) * | 2005-06-10 | 2006-12-14 | Gkn Sinter Metals Gmbh | Resilient gearing |
DE102005027054A1 (en) * | 2005-06-10 | 2006-12-28 | Gkn Sinter Metals Gmbh | Workpiece with different texture |
DE102005027048A1 (en) * | 2005-06-10 | 2006-12-14 | Gkn Sinter Metals Gmbh | Sintered tooth element with locally selective surface compaction |
DE102005027137A1 (en) * | 2005-06-10 | 2006-12-14 | Gkn Sinter Metals Gmbh | Gearing made of sintered material |
DE102005027144A1 (en) * | 2005-06-10 | 2006-12-14 | Gkn Sinter Metals Gmbh | Surface compaction of a toothing |
US7905018B2 (en) * | 2006-03-29 | 2011-03-15 | Hitachi Powdered Metals Co., Ltd. | Production method for sintered gear |
US8220153B2 (en) * | 2006-05-26 | 2012-07-17 | Hitachi Powdered Metals Co., Ltd. | Production method for complex bearing |
US8261632B2 (en) | 2008-07-09 | 2012-09-11 | Baker Hughes Incorporated | Methods of forming earth-boring drill bits |
DE102009010371A1 (en) | 2009-02-26 | 2010-09-02 | PMG Füssen GmbH | Powder metallurgical body and process for its preparation |
AT510985B1 (en) | 2011-07-22 | 2012-08-15 | Miba Sinter Austria Gmbh | ASSEMBLY COMPRISING TWO CONSTRUCTIONALLY CONNECTED COMPONENTS |
DE102012006971A1 (en) * | 2012-04-04 | 2013-10-10 | Bernd-Robert Höhn | Gear element e.g. gear wheel has open pores that are formed in bearing surface, and are sealed by mechanical compression after pores are filled with permanent lubricant |
JP6515557B2 (en) * | 2015-02-04 | 2019-05-22 | セイコーエプソン株式会社 | Member for manufacturing three-dimensional object, apparatus for manufacturing three-dimensional object, method for manufacturing three-dimensional object, and three-dimensional object |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2561579A (en) * | 1947-10-02 | 1951-07-24 | Gen Motors Corp | Impregnated ferrous gear |
SE348961C (en) * | 1971-03-15 | 1982-04-19 | Asea Ab | PROCEDURE FOR PREPARING A SINTERED POWDER BODY |
US3803702A (en) * | 1972-06-27 | 1974-04-16 | Crucible Inc | Method of fabricating a composite steel article |
DE2258310C3 (en) * | 1972-11-29 | 1982-02-04 | Schwäbische Hüttenwerke GmbH, 7080 Aalen | Sintered iron molding with a wear-resistant surface layer and use of an agent for producing this surface layer |
US4123265A (en) * | 1974-02-21 | 1978-10-31 | Nippon Piston Ring Co., Ltd. | Method of producing ferrous sintered alloy of improved wear resistance |
US4059879A (en) * | 1975-11-17 | 1977-11-29 | Textron Inc. | Method for the controlled mechanical working of sintered porous powder metal shapes to effect surface and subsurface densification |
JPS5830361B2 (en) * | 1979-02-26 | 1983-06-29 | 日本ピストンリング株式会社 | Method for manufacturing wear-resistant parts for internal combustion engines |
SE430860B (en) * | 1980-06-11 | 1983-12-19 | Uddeholms Ab | SET TO MAKE SINTERED AND INFILTERED BODIES |
US4606768A (en) * | 1985-07-15 | 1986-08-19 | Scm Corporation | High impact strength powder metal part and method for making same |
US4710223A (en) * | 1986-03-21 | 1987-12-01 | Rockwell International Corporation | Infiltrated sintered articles |
US4769071A (en) * | 1987-08-21 | 1988-09-06 | Scm Metal Products, Inc | Two-step infiltration in a single furnace run |
US4976778A (en) * | 1988-03-08 | 1990-12-11 | Scm Metal Products, Inc. | Infiltrated powder metal part and method for making same |
US4810289A (en) * | 1988-04-04 | 1989-03-07 | Westinghouse Electric Corp. | Hot isostatic pressing of high performance electrical components |
WO1990015424A1 (en) * | 1989-05-31 | 1990-12-13 | Siemens Aktiengesellschaft | PROCESS FOR PRODUCING A CuCr CONTACT MATERIAL FOR VACUUM SWTICHEs AND APPROPRIATE CONTACT MATERIAL |
CH681516A5 (en) * | 1989-09-13 | 1993-04-15 | Asea Brown Boveri | |
GB8921826D0 (en) * | 1989-09-27 | 1989-11-08 | Brico Eng | Valve guide |
DE3935955C1 (en) * | 1989-10-27 | 1991-01-24 | Mtu Muenchen Gmbh | |
US5126102A (en) * | 1990-03-15 | 1992-06-30 | Kabushiki Kaisha Toshiba | Fabricating method of composite material |
-
1992
- 1992-04-04 DE DE4211319A patent/DE4211319C2/en not_active Expired - Fee Related
-
1993
- 1993-03-23 AT AT93200835T patent/ATE144930T1/en not_active IP Right Cessation
- 1993-03-23 EP EP93200835A patent/EP0565160B1/en not_active Expired - Lifetime
- 1993-03-23 DE DE59304381T patent/DE59304381D1/en not_active Expired - Fee Related
- 1993-03-23 ES ES93200835T patent/ES2094458T3/en not_active Expired - Lifetime
- 1993-03-26 US US08/038,153 patent/US5453242A/en not_active Expired - Fee Related
- 1993-03-31 JP JP5098862A patent/JPH0610009A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH0610009A (en) | 1994-01-18 |
DE4211319C2 (en) | 1995-06-08 |
ES2094458T3 (en) | 1997-01-16 |
US5453242A (en) | 1995-09-26 |
DE59304381D1 (en) | 1996-12-12 |
EP0565160B1 (en) | 1996-11-06 |
DE4211319A1 (en) | 1993-10-07 |
EP0565160A1 (en) | 1993-10-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |